Electronics > Metrology

Fluke 5440A repair

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While I'm looking for a replacement resistor I tested the rest.

Some show stable hysteresis to one side. For example, the resistor in the picture adds 5ppm after each heating.

As a result after 20 turns on of the device we will have 100 ppm. I think this is a lot.

Is it worth to change such resistors?


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